I wouldn't necessarily say Chrome limits Bandlab appeal on a global sense considering it runs on all OS platforms. In that respect I feel it's the easiest and wisest browser/platform choice for Bandlab to operate on for the largest user base integration.
As long as you use Chrome for Bandlab, is doesn't matter what OS or DAW or even audio format bit rate/sample rate you choose to use. Everything works with Bandlab's Sound Editor, which I might add, is a pretty nifty cloud based DAW all in itself which is on par with Apple's Garageband app.
While both certainly have limitations, they are certainly heads above no DAW at all, and I really think it's great that I can tweak a mix, compose loop based beats and rhythms, MIDI sequencing on Bandlab's Sound Editor from anywhere I have data service with my Samsung Galaxy smart phone.
It really makes time fly by at the laundry mat... Instead of sitting there bored to tears watching the clothes go round and round, it's more like "Ah man! The dryer is finish drying clothes already? DAMMY I was just getting my groove going...." Recording samples of the steady rhythmic beats of the clothes going round and round in the dryer directly into Bandlab's Sound Editor.. Need to change the pitch or tempo, add reverb or delay? No problem with Bandlab's Sound Editor! It CAN even make doing laundry FUN!