Looking at it from the "other end", on playback there's nothing worse to my ears than a bright or harsh sounding recording. You can definitely use a mic with some HF presence/boost to overcome the HF loss that occurs to differing degrees depending on the PA, room, and distance. Its just very tricky to use the mics frequency curve to try to overcome room acoustics. You may get a perfect HF adjustment in one room, but take that same mic to another venue with a different mix and PA and that HF boost might be too much. If you use a flat mic, you'll get some recordings that sound a bit dull or lifeless due to the HF loss, but sometimes when the PA/room sound good, or even when the mix is on the bright side to begin with, the mics won't overexaggerate the HF. That said, most of the mics I've owned have a bit of HF presence boost, and I've made plenty of recordings I've enjoyed, even from a distance (I prefer to record from the sweet spot), but I've put together a playback system that is definitely on the warm side and I find a tube preamp does wonders to "soften" bright recordings.
Bottom line, no mic is "perfect" for all situations. It comes down to personal preference.
Oh, and boomy bass can be helped by using a high quailty mic preamp. Another option is to use a high-pass filter, -6db/octave at 100Hz is a good place to start.