Check the bold parts. Gameklip was talking about them needing each other in regards to gameplay. Also, nothing there about competition being based on who sold the most. Fifa upping their game was based on Konami's better gameplay, they needed to surpass it. Konami's better gameplay wasn't a next-gen thing, it is based on their PS2 performances, their classics, their peak. Also not to mention the older versions of the PS1 and SNES etc. The whole of that era, Konami were a much better game in regards to gameplay. And no, their driving force wasn't Fifa selling in millions.
Fifa wasn't the only football game back in the day. There were numerous football games out there, that weren't selling as much as Fifa that Konami had to compete with regarding gameplay. If Konami wanted to make a game to compete with Fifa's selling numbers then they would've concentrated on different aspects, gameplay not being their major concern.
Fifa's team being different back in the day used as an excuse why they were shit has no relevance here. Fact is, they were bad, even if they sold mountains of their product. They cared about making money more than catering for the right crowd. Fifa has changed people/admin/teams numerous times I believe, and I'm happy they've finally hired the "right" people. The ones currently in charge have even said they didn't know how Konami were doing it during their peak. Well thank god they do now, and they have a much better game compared to the old-gen ones.
Sadly, these days on current-gen, we only have them two to push each other forth. I would love to see more companies entering the market to push the competition further.
Football is the most popular sport, and with only 2 games representing it, which are popular as well, they're bound to move in millions. Maybe they're both doing ok, but believe me they might get lazy as in not pushing to the limit. That is why we need more companies coming in. With about 4-6 football games trying to compete, and each one of them trying to preach from their own perspective, then learning from each other, then pushing much further, we as customers are bound to get a football game that is much more refined and complete.