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This means that the opponents you played simply used the computer to see how long they could last against it, rather than trying to learn about the way it uses tactics. A person who uses a computer properly, should be very tactically sharp.
That's why in a later post, i added that the better the player, the less it would negatively affect that player. Better players are more developed, leading to less of a chance of learning improper style, and have more knowledge, allowing them to take advantage of a better analysis of the game.
I play against engines to warm up and mentally prepare myself for games. For practice, I prefer not to use engines. The main difference are the dubious options ?!
You should just play a lot of live chess