Unfortunately we cannot offer a "vanity link" -- a version of the URL that's even shorter than this:
However, you can use a URL shortening service such as bit.ly to make it even shorter.
If you want to show your Matterport Space on your printed (offline) marketing materials, we recommend converting the URL into a QR code.
Then copy and paste the QR code on your flyers and other collaterals. Your intended audience will scan the QR code with their smartphone and explore the Matterport Space with their phone.