They need to keep in mind that Google spend decades getting to where they are with the current toolset. Proton shouldn't be expected to replicate it in a couple years.
I'm sure people are asking for this stuff, but I hope it is sustainable. I'm a paying customer and only use the email today. With the pace of these releases, I'm not comfortable investing in these new tools, because I'm not sure how long they'll be around. I'm starting to question the email choice, since I'm worried they are spreading themselves too thin. I'm not sure what their financial situation is like, but I hope this isn't all from a bunch of funding or debt they will need to answer for at some point.
So hopefully once they have tool parity with Gsuite they would buckle down and work on features of each application?