I don't think anyone currently available was better choice than one of those two.

Based on both past and recent results Mikkelsen was seemingly as good choice for Estonia (which off course doesn't mean he would do better).
But Suninen was seemingly better choice for Finland.

In the end I would rank Suninens results as 8/10 in Estonia and 4/10 in Finland.

Then the already asked question is whether Sordo or Mikkelsen would do worse. Sordo would definitely do worse in Estonia but for Finland I don't think either of them would do worse.

Whats the point of getting Suninen when at his two best events (again his words) he does barely better than what could be expected from the two others.

CA's words were that he wasn't looking for replacement just for the two events but for a longer term solution. Suninen didn't exactly confirm he is one. And funnily enough Hyundai announced Sordo for Greece within an hour after end of the rally, while these kinds of announcements usually come 2-3 days after.

No I don't expect CA to call Mikkelsen for next season at all. I expect him to try to get Ogier really hard an use Suninen as "fill" for those relatively few events Ogier won't do.