The micro guns are often bought by many to carry & not really shoot much. Generally by the casual gun owner who wants a "pocket gun just in case!" Many are not fired at all. Of if so,, shot with one magazine & then just carried.
The LCP is known for it's heavy & harder to pull trigger. Many know that a good trigger is one of the key components in accurate shooting.
However, the very first rounds out of a LCP by Miss Penny resulted in a larger group than she's capable of,, and he comment was; "It bites!"
My first rounds were just the opposite,, using the exact same gun. At 35 ft, on my 8" steel plate rack, I hit 5 out of 6 immediately. Then I shot a group at 15 yds,, that was about 6".
The gun is CAPABLE of good accuracy for it's size,, but it does require a different thought process to shoot it accurately.
Most casual shooters aren't capable of that.
BUT,, small, micro or very compact pistols are actually considered very close range defensive firearms.
Are the obsolete?
By far,, NOT!!!!!
But there are quite a few different varieties to choose from & the prices can be pretty good, due to the volume of them.
But a SHOOTER,, or someone who spends more than the casual one magazine & quit type of shooting,, OFTEN prefer a larger & easier to handle firearm.
When I teach,, I tell students; "Find the gun that fits YOUR hands,, and YOU can shoot comfortably. Then PRACTICE a lot." Often,, they have chosen a larger than micro gun for their purposes.