I don't know about masculine verbs being more common. They might be right (I haven't counted), but just based on how German grammar works, I'd instead expect it to be neuter nouns. That's because any verb can become a noun, a neuter noun. And a lot of masculine or feminine nouns also have (or can become) diminutive counterparts, by adding the suffix -chen, which turns them neuter. For example, der Hund - the dog, das Hündchen - the puppy (they also often change a vowel in the root).