Wilshere, who is on a season-long loan from Arsenal, was not included in the 26-man line-up to face Germany and Lithuania while West Brom's Jake Livermore was handed a shock call-up.
Howe feels Wilshere has answered his critics by overcoming his well-documented fitness issues and deserved to be involved again.
"It is very difficult to put any other hat on than the Bournemouth hat, so am I surprised? Yes, because of the quality of the player Jack is, but I am not looking at the (England) squad in terms of who else there is to pick from," Howe said at a press conference.
"I have been very consistent (with my thoughts) throughout the season. I think Jack has performed really well for us.
"The only question mark hanging over him before coming here was his ability to play consecutive games to keep fit, and I think he has done that.
"I still feel there is a lot more to come as he continues to get back to his very highest levels, so we have been very pleased with him."