That will probably only happen if Anton could somehow convince the French Third Republic to put up a much stiffer and better thought out fight too and Hitler makes to mistake of wanting to take over the tiny fellow “German” country of Moravia simultaneously. Not impossible, Hitler made an awful lot of boneheaded military decisions historically after all.
Assuming enough former resistance fighters still keep some of their guns at home and particularly if we move towards a more Swiss style conscription “army of the people” (which might not be a bad thing for solidarity to try if in power, if only to break the stranglehold of general Falk and the old army), then, yes, Moravia could be even worse for the Germans then it was back in the alternate WWI.
If Moravia could give them about half the trouble Switzerland would probably have given them had they actually gone ahead and executed operation Tannenbaum as planned, then together with a stiffer French fight it might just be enough to end the Nazi regime early. Though that end would probably come by hardline, traditionalist military coup, so the Germany that is most likely going to replace it might not be all that much friendlier to even social democratic Moravia, let alone a (democratic) socialist one.
Of course should (socialist) Moravia “beat” the Germans and be sufficiently valuable to the other Great Powers, mainly the US and the Soviet Union both then an mc who manages to become the new hero of the Moravian resistance might be able to parlay that into a position not unlike that of Tito, but that would require a whole awful lot of things to go just right.
The way I see it for Moravia to stand a chance of repulsing the Germans outright most of these need to happen simultaneously:
First of all the Nazi’s have to invade Moravia either early (but not too early) or late in order for it to coincide with either the invasion of France if early or to coincide with the invasion of the Soviet-Union, if late. This will prevent them from just applying Zapp Branigan’s patented techniques and just overrunning us with limitless reserves. If early, which is rather more likely, unless Moravia manages to somehow become a Communist (Stalinist) republic firmly allied to Moscow, then France needs to fight better, smarter harder and longer then they did historically as well, since Moravia alone might delay them and bleed them but wouldn’t defeat them nor topple the Nazi regime outright on its own.
Secondly we’d need a large conscription or citizen’s army and a decent amount of guns to arm it with, both may not actually be all that easy to achieve with both reactionary and likely social-democrat opposition to any such plans.
Thirdly we need to be strategically valuable enough and have enough “teeth” to ensure the Brits and/or the Americans won’t just roll in for some regime change once the Germans have “softened us up a bit”.
Now it certainly doesn’t seem impossible, but neither does it seem terribly likely to achieve all of this.
However a Moravia that fights back hard and determined enough could certainly make the Nazi’s bleed enough to shorten the war by at least a bit.