Definitely. I used to play team games all the time in vCoH then eventually "graduated" into playing 1v1s almost exclusively. Games are a lot more tense and the success of the match hinges solely on you and your opponents ability. There is no one else to lay the blame on but yourself if you lose a match. Its the purest form of self-improvement you can get in this game, and any other RTS for that matter.
I too wish more were playing 1v1, it could be a lot more fun facing a wider variety of opponents and strats. But I understand where this "fear" comes from, to be honest I remember thinking 1v1s were boring with literally half the action going on but its much more fun than team games imo.
I guess its about personal preferences. I started with the team games, then graduated to 1v1.
Eventually, I got bored of 1v1 because I find it very repetitive and doing same thing over and over again for a quick win and rank up. Even when I used to play 1v1, after that, it would be exclusively basic match where I can chose good opponent.
Went back to teamgames. 3v3's and 4v4's in VCOH were awesome because you could create very even and balanced game. (long wait if you don't have friends tho)
COH2, I play mostly 2v2 because 3v3's and 4v4's are just awful with automatch mismatch and spamming call-in supertanks/abilities. It just feels like one big explosion that starts around 10 minute mark, and doesn't stop ever. Not my thing at all.
Find COH2 1v1 even more boring than VCOH.
But that's just me, I just don't find it super fun