I also wrote wrote in detail about the election here.
I skimmed this article (and this page on "stalinist traitors" they list), seems like the usual facile ultra-left or trotskyite critique of the left parties (ironically since one of them is rooted in trotskyism), I can even think of a handful of 1k twitter followers "organizations" that could've written it.
What I'll say is this, to claim that the problem is the lack of parties that run with programs saying "violent revolution" on the cover is just cope, especially when the communist party's program already has all the anti-capitalist, anti-nato anti-EU stuff that these people support anyway. In fact that party itself is an example of the limits of publicly identifying yourself as a communist regardless of your program, even if people don't think you're actively seeking to make their lives worse by valorizing violence.
It's like in any other country, there are plenty of ultra-left sects with no support hating the left and each other and claiming to be the "real communists", creating another one of these is not a new solution, it's something that these people would say regardless of the results and every year and I swear there's a new one of these that gets even less support
Leftists just have to acclimate to the idea that we DON'T know the real answer to effectively grow as a publicly socialist/communist organization in these current conditions, not in portugal nor anywhere similar.