Can there be too many seams in a dryer vent pipe?
The number of seams is really not the issue.  The length is, but this is probably a better solution than alternatives.

When you put the pieces together, you should arrange that the downstream sections fit over the upstream, so the interior transition doesn't have an edge that lint catches on.

Another subtle thing, would be to try to put a slope down from the elbow to the exit, so any condensation runs out.  Avoid any dips.
I put aluminum tape on mine to seal the joints and keep it together.