Issue with Code Snippets Plugin: Bug?

So, I found the following code:

function sv_remove_product_page_skus( $enabled ) {
    if ( ! is_admin() && is_product() ) {
        return false;
    }
    return $enabled;
}
add_filter( 'wc_product_sku_enabled', 'sv_remove_product_page_skus' );

at 100 WooCommerce Tips

So, I installed Code Snippets 2.4.1, pasted that code into the code window and enabled it and the whole site breaks. Thankfully I found the Code Snippets FAQ and turned on safe mode, deactivated the snippet, and began experimenting with code sequencing and application.

I did find a fix… I found that if I separated

add_filter( 'wc_product_sku_enabled', 'sv_remove_product_page_skus' );

from

function sv_remove_product_page_skus( $enabled ) {
    if ( ! is_admin() && is_product() ) {
        return false;
    }
return $enabled;
}

by inserting it into a separate code snippet everything works.

I am new to WordPress and website admin so this is quite challenging… patching / fixing / removing this need to separate the add_filter ?function? would be great!