They can be acknowledged as centres of numinous power without losing any of our ability to perceive each one of them directly. However, if we think of them as disguised human-type deities, there may be a risk of not seeing them as they are, but of anthropomorphizing them. There are perhaps dangers in believing literally in too many subsidiary deities. If someone loves one particular tree, then it is that tree that possesses a numinous quality for them. They may not perceive it in its vibrant unique individuality.
Pantheism is quite compatible with a sophisticated animism.
Pantheism, in other words, is perfectly compatible with a purely symbolic or playful use of gods and goddesses of nature, as long as the user remains fully aware that these are merely symbols for a deeper reality and never allows them to obscure their intense perception of everything in the real world in all its individuality and uniqueness. But pantheism is not compatible with literal belief in multiple gods and goddesses, even if the believer feels that these are only subsidiary deities. It is not pantheism. What pantheism can offer to paganism is a coherent way of looking at the divinity of nature and the universe - a solid rock to stand on, if you like, while experimenting with all the varied and playful ways of celebrating divinity that paganism can offer. Straight pantheists have been very weak on the ceremony and ritual front.