Trading with Zero fees

In trading, every penny counts, even if it's $0.2, It matters. I remember taking a trade where I closed almost instantly, but I still lost cause of charges. Luckily for me, I was able to find out a CEX is changing that rule by removing the gas fee for all onchain trades, so now one can trade stocks without the fear of gas fees.

This got me stuck cause it's a great innovation. Do you think this is a great approach?