All of that in general seems to be very fair comment and outlining things that would along with many other things suggested by many various users many times as being what Reloaded could, should or might ideally provide for.
Some at least of those things might be said to be both sensible to include and helpful to user/game makers and to be things which one might expect to see in a modern game maker/engine so as users can make better games that they can deploy to the enjoyment of the end game players and also perhaps importantly to place the product in a reasonable position of professional esteem.
Much of what we have to date as is making up what Reloaded is comprised of are quite Basic interpretations of the available features. Basic Terrain, Basic Water, Basic AI, Basic Weapons and to come Basic building feature (Construction Kit) and so on.
Some of the features outlined which are mentioned very desirable though they are, either as additional features which could be added or existing features which might ideally be updated and improved to be and include a much higher level of quality and more sub features as mentioned are clearly things which would enhance the product and lift it to a somewhat higher specification as a Game Making product.
Many of them add to the sophistication and complexity of the features and make for a better product all round, however that can only be the case if they are included in a fashion which does not impact on the product, the users ability to make games with it and the final games made and distributed with it. i.e. they add to the product and not detract from it by introducing things that cause the engine to become unstable in any way and result in swings and roundabouts by adding valuable features but causing other impacting detrimental effects which cancel out the overall benefit by causing more problems that are not needed which make the game making and playing take longer or worse.
More features and sophistication is of little use if badly implemented or cause issues and instabilities which become more of a nuisance than the worth of it for game makers and impact by reducing enjoyment of end game play. That is quality over quantity is best.
As said Reloaded is currently composed of features which are quite Basic and one could say only partly developed both in practical terms and with the level of quality and range of sub features they provide. Terrain, water and AI for example where much improvement could be said to be desirable by a long way and these are core features.
Of course adding much additional advanced sophistication and complexity to the core features alone will no doubt put a much heavier requirement on the engines need to be able to manage all those extra things efficiently and impact on performance and stability.
It would seem that asking for more to be added in any major way of adding more complexity and range of internal feature, sub features even to the existing core features at the moment is asking too much.
Thus who knows at this stage how adding a lot more features either not even scheduled or asked/suggested to date could be contemplated or supported. There are literally hundreds of things that could and perhaps should be added. How that could ever be contemplated at the moment at least I don't quite see it. Examples are particles and alike. No particles, no particle weapons and so on.
At this stage it would seem that achieving a stable core with the basic level of features is a somewhat difficult task to deliver to say the least. Looks like adding a lot of sophisticated, complex and or advanced features are likely at the very least to be a long way off if indeed they could ever be accommodated.
A basic engine feature set is at this stage itself is looking like enough of a difficult undertaking to get to and achieve with acceptable quality, performance and stability.
All desirable as said suggestions perhaps but not sure they are very realistic or will ever be so. You may have to accept that Reloaded will have to be what the engine can sustain and deliver whatever that might be. At the moment it is what it is and nothing more.
Sooner or later it has to move on and things may become clearer if they are not already so.