Not true.but you simply can't get them in decent numbers for France/Poland without making too many sacrifices,
As Germany your priority is to have a big army of good tanks and enough fighters for Barbarossa. So Tank research is top priority anyway.
You can get Medium Tank 2 in Mid to late 38 and thats early enough to produce enough Medium2s for Poland/France. (You need only 2-3 40 width Divisions)
Advantages:
- You don't need to produce any light Tanks (that are useless for your main goal) at all. (You can cancel the line at game start.)
- Don't need XP to spend on a light Tank template.
- You fight all your wars with the same tanks. They gain experience for Barbarossa from Poland, France, Yugoslavia, Greece...
- Mediums are better than Light Tanks for breaking the line and pushing Divisions
- All the strategies you mention (Pin then rush to cut off) work with Medium Tanks as well.
If you do France with Light Tanks or Medium Tanks is personal preference.
Both can be easier for beginners. It depends.
I think your strategy is good for beginners and it's great you posted it here. But it's not the only one.
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