First PhD Application: Proposal to potential supervisor

Hello everyone, I've recently contacted a potential supervisor at SOAS who responded saying that he's generally interested in the (broader) research topic. I've mentioned my overall research area, focus, interests, motivations in my initial communication with him, quite comprehensively. I asked whether I need to share a draft proposal with him first, he said no need. He asked me to submit a research proposal through the formal application system without further discussion.

Can this be considered a positive response from his side?