It may be fast but wont really be enough for ERC20 token users or supporters to switch up on Binance chain.It would still be a good alternative though and it wont really cross the borders.
4 ERC20 tokens already switched to Binance chain
Many more coming.. ETH is really way too slow compare to Binance chain 1 sec block
It might be too slow right now but I expect ETH to do more better. There will be a new upcoming upgrade with ETH and it can be a good reason for an ERC20 token to stay with ETH blockchain. Well, its their choice after all maybe those 4 ERC20 tokens needs more exposure in the market and put their coin where the hype is high is good strategy.