It's not similar to that at all really. Lancers are already easy enough to fight or evade. And 99% of players would think of trying because there isn't a need to try "chamber" blocking a lance. A lot of people don't even bother blocking lancers, they just place a properly timed stab and kill their horse.
Against noob lancer, yea you can just dodge&stab, if you are good. But against a good lancer you would hardly get to do it right on first strike, it would take a couple of blocks before situation allows for dodge&stab, because good lancer knows how to use his weapon length advantage. You just don't see good lancers often, because those who become good in cav will ditch lance for sword cavalry, simply because lancer is inferior to cavalry armed with sword, a lancer without a team on his side is next to useless. But, remove downwards block from all weapon types, and lancer will suddenly become OP.
If you want, we can meet up on some server, I take lancer and you try to counter me without blocking, I'm pretty sure your success ratio will be a zero.
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