That's not what the word conservative means, not by the dictionary or even politically.

Conservative is the averse to change or to hold traditional values without logic. It's more like a type of fear. Even if the change was easy or have 0 cost, a conservative entity won't do it.

In many cases, the conservative approach to a problem is prudent because the old ways work whereas there is more risk and uncertainty with new.

That's not fear, it's wisdom.