Sendcloud Connection Getting Blocked?

Recently Sendcloud released a new plugin and a new way of connecting their integration, the way they do this is quite something… And I think due to the way it concatenates various query strings it is getting blocked by BPS. This is the link that is formed when trying to make the connection which ends up to a 403 page:

https://nendoaddicts.be/?sendcloud_v2_controller=SCCSP_OAuth_Connect&action=init&response_type=code&client_id=fake-client-id&redirect_uri=https://account.sendcloud.com/redirect/shops/woocommerce_v2/redirect/auth/install/&scope=api&state=ny2M59sHg3acS4QepDxOyqxVzowSW5&deactivation_token=ZR2fGmZsBekmQAh2X6Q7mBlgG9XOltzW&deactivation_callback_url=woocommerce.eu-central-1-0.sendcloud.com/v1/auth/uninstall&code_challenge=gXeArm7FrBC4JpjDwq4K_w92g5jksJqUSrHlqyMJxKQ&code_challenge_method=S256

I modified some of the more unique codes just for security purposes but the url that results in the block is practically identical to the above one, so is there a way to resolve this without constantly reverting the htaccess?

Thank you in advance for further information information.

The page I need help with: [log in to see the link]