As I said - on a very, very abstract level that may be true. It's highly unlikely that you'll find much agreement by focusing on this level, though.
One example: No tank in WW1 ever bounced a cannon shell. Tiger2 was definitively built to do exactly this. The first tank built to stop shells -not only bullets and fragments- was the Char B-1bis, with a few days advantage over the Mathilda II.
Show me a tank type of WWI which served as command tank or was in radio contact with all other tanks.
Show me a WWI tank which was meant for reconnaissance.
Show me a WWI flamethrower tank.
Show me a WWI tank with a useful operational range and speed - enough for the encirclement of an army or corps.
Show me a swimming WWI tank.
Besides; Tiger and Tiger 2, even Ferdinand/Elefant were highly successful vehicles in the context of open terrain (Eastern front), well worth their price. These designs have been bashed a lot for their difficulties, but the kill ratio is outstanding and they were able to harass front lines or support a local counterattack at little risk.
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