The 'trend' is that as an open source clone, Calendso
doesn't have a marketing team behind it, so it's entirely true to point out that their landing page doesn't have the polish we've come to expect of a VC-backed unicorn company with a time-proven, expensive marketing firm taking pictures and writing website copy, and that it could do better.
What I think some are reacting to is that it's also unfair to expect that. The person looking for an "open-source Calendly alternative" knows they've found that because that's going to be what, by brand name, what they're looking for and will know they've found something that addresses that need, with those three words.
