Since you're designing the game around computers with keyboards (no mouse, no smartphone app) you may have some people who just don't understand your approach. All games coming out now are designed to be played on smartphones.
I think this could actually be an added value to differentiate wordadoplicus from the others.Playing on the computer without a mouse just isn't done anymore, so it's a challenge and it's retro, You can tap into the whole nostalgia market, such as for people buying up old Ataris and playing centipede with a joystick.
If you market the game as the most retro wordgame since 2010 you can very clearly position yourself and people can clearly see where you're coming from.
And especially they'll stop asking you if you're developing an app version.