I am also wondering if any work has been done to resolve this problem?
Same questions as above:
Has any work been done to improve the HubL flexibility in email templates since this post was made in 2018?
Is any work to improve the HubL flexibility in email templates planned for the next month? 6 months?
This puts the burden on the developer to write custom html and send it via custom properties to the email template. This is especially burdensome to work across marketing/development departments any time a small change needs to made to an email template. I greatly appreciate any response in regards to this.