Meh, most of it is ignorant opinion. I mean the locked campaigns unlock if any player in your party has it available, so obviously he didn't party with many players. It just doesn't count towards your progress or medals for solo. While I agree that the gold costs are high, he doesn't mention that you get additional gold per victory as your tier increases or that you can farm with bounty hunter weapons. The grind in Warframe can be much, much worse (and I'm MR 25). As for mid-match joining, just no. It's ironic that he complains about being a player down and then wants to skip cutscenes so he can start the mission solo. Again, not the most logical opinion.
There are certainly some valid points like communication and scoring being more transparent, but some of these are already on the roadmap. I do agree that the progression path is also very poor, especially for weapons. So yes, there are areas that definitely need work but I think this type of criticism would have more merit if it were from someone with more familiarity with the game. It is, however, a good generalization based on what new players think.
