Yes. You are allowed to play on any site you choose. We have no restrictions.
BPC recommends you to play normal tables (with the exception of NL2, you can play NL2 zoom). We analyzed millions of hands of our students and even the best students do better at normal tables. It's not even close.
The most profitable sites are the ones with the best rakeback deals so make sure to check in your CFP account for the best deals on the market.
Check more details about rakeback here >> https://bestpokercoaching.zendesk.com/hc/en-us/articles/203463521-I-am-looking-for-a-rakeback-bonus-deal-what-should-i-do-
If you have no other tables or if you live in a country where limited tables are available, of course just do whatever you can.
Generally speaking, you should be able to beat micro-stakes on ANY site.