The Korg PA3x has the ideal solution to the issue, IMO.

It's best drum KITS have ambiance sampled into the sound, BUT there's a control for how much... So you can go all the way from that 70's bone dry sound to the 40's and 50's 'everybody in the one room' type sound (listen to any Spector, too!). Roland's drums all have a BIT of ambiance sampled in, but you can't increase or decrease it. Admittedly, to my ears they get it right, but Korg allows you to increase or decrease it when it isn't quite right.

Those Yamaha loops sound so drenched, sort of 'look what WE did!' shoving it in your face, but the truth is, outside of a recording, where you could put a big room around all the OTHER Parts, for most live players, it's too much. Either the arranger needs a MUCH better room reverb processor, something that could put the same ambiance round the MIDI Parts that is sampled into the loops, or the loops need taming to where they match the ambiance the arranger IS capable of matching...

The latter is the easier, less expensive solution.