Video backgrounds and animations are no problems whatsoever. This website builder gets SEO right, too. Portfolio pages, in particular, turn out really good, and most importantly, without being difficult to create. They have many business-focused apps (e.g. for hotels or restaurants) that can make your life easier if you are in one of these industries.
You are mistaking the problems with WordPress as something that is inherit in PHP. That might have been true years ago, but modern php (php7 and hhvm) is a very powerful and mature language with rock solid performance, and in the case of hhvm that performance is equal to native,and in many cases faster than even C++. When written correctly and running in the right architecture it scales seemlessly and delivers low latency and high throughput. Sorry if you thought you could pay some indian 3 bucks an hour to slap together a wordpress site and be the next facebook.
Fun fact: I once received a nasty email on Christmas morning from someone on my email list. They received an automated email from me that morning (they subscribed to my list a few days prior) and they didn’t realize that it was an automated email. They thought that I actually wrote and sent that email to them on Christmas morning, and they were livid. I did end up apologizing to them, and explaining that it was an automated email. But trust me, in most cases it’s best to just unsubscribe these people from your email list and get on with your day.
Imagine just letting your website sit around for a year without ever editing its content. After a year, the WordPress CMS version is old and probably susceptible to hacking. Most website builders, on the other hand, are silently updated and maintained behind the scenes by the provider. As long as your password is secure, you have almost nothing to fear.
It takes time to create, but once you have a functional sales funnel up and running, your only responsibility is to make sure that new people are entering your funnel on a regular basis. How you do that is completely up to you. You could write more blog posts. You could get interviewed on podcasts. You could start a Facebook Group. You could start a YouTube channel. You could use Facebook ads to promote your blog post. You could do all of these simultaneously and more. Do what you can, with whatever time and resources you have.
You can import your WordPress blog to Squarespace, which we like a lot. Nevertheless, we don’t recommend using Squarespace for blogging unless you don’t particularly care about SEO because page titles and meta descriptions can’t be adjusted for individual blog posts – which is very important for ranking with search engines. However, be aware that Squarespace is more difficult to use than Wix or Weebly due to its convoluted interface.
To have an effective eCommerce sales funnel, you must first know what a funnel is even is and how to build one. Lead generation and sales funnels come in many different shapes and sizes. And they work extremely well because they often start off with a very simple task, such as a click or an email submit, and then walk the user through a process where they complete more steps (like an eventual sale) over time.